Method of unidirecting electrical currents.



E. A. BURLINGAME.

METHOD OF UNIDIREGTING ELECTRIC GURRENTS. APPLICATION FILED NOV. 11,1908.

928,583. Patented July 20, 1909.

. z 28" INVENTOR. WITNESSES. (2% 9 WW4 90W? I A TTYS.

over a line uni-r UNITED STATES ljzgnnr OFFIGE.

ELMER A. BURLINGAME, OF SAN FRANCISCO, CALIFORNIA, LASSIGNOR TOBURLINGAME TELEGRAPHING TYPEWRITER COMPANY, A CORPORATION OF WASHINGTON.

IEETHOD OF UNIDIRECTING ELECTRICAL CURRENTS. I

Specification ofLetters Patent.

Patented July 20, 1909.

Application fi1ed November 11, 1908. Serial No. 462,185.

To all wlzo'm it may concern;

Be it known that I, ELMER BURLIN- GAME, a citizen of the United States,residing Y *Unidirecting E ectrical Currents, of. which the following isa specification.

My invention relates to a method of making electrical im ulses ofdifferent directions lirectional through a desired apparatus.

An embodiment of my invention is illustrated by the accompanyingdrawing, which forms a part of this specification, and in which thefigure shown is a diagrammatic view. p

In the said drawing the numerals 1 and 2 are line terminals.

The numeral 3 represents a polarized relay, of which the permanentmagnet is not shown. The lever 4, of the relay, is between the contactpoints 5 and 6. The relay magnets have the rimary terminals 7 and 8, and

=. present to the ever 4 the pole pieces 9 and 10.

The magnets 22, 23, and 24 represent the apparatus through which isrequired the uni-directional current. I

As an illustration of the operation of my invention I will assume thatan electrical impulse is received over a main-line wire at the terminalpoint 1.. All of the current will flow through the wire 11 to the point7.

From this point it will pass through the Wire 12, the coils of magnet 3,wire 13, to point 8. This will, assuming that the relay magnet issoadapted by its Winding, pull the lever 4 against contact point 6. Thisaction creates another path for the current from point 7, where it willdivide and a portion pass through wire 14, lever 4, contact point 6,wire 15, to points 16,- 17, and 18. The ath of this portion of thecurrent is then rom these points 16, 17, and 18 through the magnets 22,23, and 24 to oints 25, 26, and 27.

The two resistance coi s 20 and 29 prevent a short circuit through themagnets 22, 23, and 24, and as the current is taken off from the point21 by the wire 30, it will be seen that a portion of the, current willass through the magnets 22, 23, and 24 rom points 16, 17, and 18 topoints 25, 26, and 27. A portion of the current will pass by the -wire19, and coil 20, to point 21 and the other portion: that passed throughthe magnets will flow by wire 28and coil 29 to point 21. There thecurrent will join and pass by the wire 30 to point 8 where it will jointhat part of the current that passed through the relay 3. From pointSthe-whole of the current will proceed by the Wire 31 to the terminalpoint 2. I j

It will be noticed that the direction of the current through the magnets22, 23, and24 was from the points 16, 17, and 18 through the saidmagnets to points 25, 26, and 27.

Now I will assume that an electrical impulsebe received from the mainline at terminal point 2, and that it passes through the apparatus in anopposite direction to that taken by the current just described. Thecurrent will flow over wire 31 to point 8. From this point it will goover wire 13, the magnet 3, wire 12, to point 7. This completes acircuit through magnet 3, and the current being in the oppositedirection to the one just described, it will pull the lever 4 in contactwith contact point 5. This closes a circuit which will carry a part ofthe current from point 8,

over wire 30 to point .21, where two paths are presented to this part ofthe current. One is through the resistance coil 20, and Wire 19, topoints 18, 17, and 16. From these points the path is through the magnets24, 23, and 22, to points 27, 26, and 25. The other path is throughresistance 29 and wire 28. It w' 1 be seen that the resistance coils 20and 29, as for illustration, form arms of a balance.

When the current comes from oint 21 the j arms will be normally in be.ance. Now

when the current is taken off by the wire 32' from the points 27, 26,and 25, the balance will be' disturbed, and cause the current toflowfrom the points 18, 17 and 16, through the magnets 24, 23, and 22, topoints 27, 26, and 25, because of the dro in the potential caused by thetaking off of t 1e current by the wire 32. This portion of the currentwill then pass by contact point 5, lever 4, wire 14,

to point 7, where it willjoin with the portion that passed through themagnet3 and the whole of the current then wil pass on over the wire 11to the line terminal 1. This current,it will be seen, was through themagnets 22, 23, and 24, from points 16, 17, and 18, to

points 25, 26, and 27 which is the same direction as taken by therevious impulseof opposite main-line direction.

prefer that the resistance coils 20 and 29 be so adapted to give greaterresistance to the flow of current than the resistance given by the saidparallel secondary circuits, and rethe magnets 22, 23, and 24, sistancecoils in each of said parallel second- H'aving thusde'scrib'ed myinvention, what I arycircuit's. I claim as new and desireto "secitre 'byLeti 'In testimony whereof I have affixed my 5 ters Patent is: signaturein the presence of two witnesses, In an apparatus of tlhe classdescribed, al this 4th" day of November, 1908. main-ine circuit a oarize re av ma net 1 connected therein, se ondary circliitsin par ELMERBURLIN GAME allel, said secondary circuitsconneot-ed with Witnesses: 710 the main-line circuit by action of said polar- FRANK L. OWEN, izedrelay magnet, magnets connected across A PHEUs DIXON.

